Typewriting-machine



0. FISCHER.

TYPEWRITING MACHINE.

APPLICATION HLED MAR. 19. 1914.

Patented Sept. 27,'1921.

6 SHEE1 'SSHEET I.

' 0. FISCHER.

HPEWRITING MACHINE.

AI'PLICAIION FILED MAR.19, I914 Patented Sept. 27, 1921.

6 SHEETS-SHEET 2.

Ililliiiili' 0. FISCHER.

TYPEWRITING MACHINE.

APPLICATION HLED MAR. I9, 1914.

Patented Sept. 27, 1921.

6 SHEETS-SHEET 3.

O. FISCHER.

TYPEWRITING MACHINE.

APPLICATION FILD MAR. 19. 1914.

O. FISCHER TYPEWRITING MACHINE.

APPLICATION HLED MAR. I9, 1914.

Patented Sept. 27, 1921.

Q Q m 0. FISCHER.

TYPEWRITING MACHINE.

APPLICATION FILED MAR. 19, 1914.

1,392,135; .PatentedSept. 2.? 1921,

. 0am FISCHER, OI BERLINNTILMERSDORF, GERMANY.

mnwm'rmsuac'nm Specification tr Letters Patent. Patented Sept; 27, 1921.

Application filed latch 19, 914. Serial No. 825,776.

Tov all whom it mag concern:

Be it known that I, OSKAR FISCHER, a

citizen of the German Empire residing at Berlin-Wilmersdorf, in theKingdom of Prussia Germany, have invented certain new an usefulImprovements in Typewritin -Machines; and I do hereby declare the i0lowing to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to makeand use the same.

" and throw' My invention relates to improvements in typewritingmachines, and more particularly in typewriting machines in which thetype carrier consists of a rotary type wheel having the types arrangedabout its circumference, and in'which kc controlledelectromagnets areprovided or rotating the type wheel with one of the types in printingposition and throwing the same against the platen, and also if desiredfor shifting the carriage for letter spacing. For this purpose -bydepressing the key levers electric contacts are made by means of whichthe circuits including the electroma nets for rotating and throwing thetype w eel are closed. One of the objects of the improvements is to soconstruct the key lever mechanism and the electric rotating and throwingmeans, that the machine can be operated at high speed. A further objectof the improvements is to regulate the rotary and throwing movements ofthe type wheel in such a way,

that the characters printed by the type wheel are not blurred and areperfectly clear. With these and other objects in view my inventionconsists in so constructing the key lever mechanism and the electricalrotating means, that all the operations of the machine, which inmachines of ordinary construction are performed by the downward andupward strokes of the key levers, are performed by the downward strokeof the key levers, so that it 1s not necessary to release a depressedkey lever before another one is depressed. Furthermore my inventionconsists in so constructing the contact making devices for the rotatingand throwing electromagnets, that by depressing a key lever the rotatingand throwing electromagnets are successivelythrown mto operation, whilethey are simultaneously thrown out of operation.

By thus constructing the typewriting machine the operation is madeconvenient, the fingers, which in machines of ordinary construction aremoved from one key 'to the other. one, can rest on the keys. In theoperation of the machine the weight of the hand isalternately shiftedfrom one finger to another one, and instead of moving the hand'from onekey to the other one in my improved machine only slight movements arenecessary which are performed exclu-- sively by the fingers, and whichcan be performed at greater speed and with less strain, and which areperformed with great accuracyeven if the writers eye is not directed tothe keys, because the fingers are always placed on the same keys.

In constructing a typewriting machine of this kind it is necessary thatthe electromagnets remain energized until the type wheel has struck theplaten. If the energizing circuit were interrupted before this moment,the type wheel would begin its rotary return movement prior to printingthe desired character, or the type wheel would not come into contactwith the platen, and in any case printin would not be performed withsufficient orce. However, when the type wheel strikes against the platenall the movable parts come to rest, so that the contacts can not beopened any more, because for doing this the contact breaking parts mustbe in motion.

' In my improved machine this difiiculty is overcome by providinintermediate members which transmit t e movement of the keys. to thecontacts, and which are diSconnected from the key levers by elementscontrolled by the electromagnets while the keys are movin ,downward orare being depressed. ereby the contacts are moved into circuit breakingpositions independently of the key levers, and the type wheel throwingor printing electromagnet is thrown into operation by closing twocontacts disposed in series. One of the contacts is closed by depressingthe keys and together throwing the type wheel, and also the meansprovided for shifting the carriage for letter spacing and the ribbonfeed mechanism are returned into inoperative or normal positionsimmediately after printing and even if the key lever is still indepressed position. Thereby the printing electromagnet returns intoinitial position without any delay, the

speed of wrlting is increased, and the character which has been printedcan not be blurred, which would be the case if the type wheel wererotated backward and into initial position before it is rocked away fromthe platen. My improved machine consumes little electric energy, becauseonly short current impulses are necessary for operating the same.

My invention also relates to other 1mprovements all of which willhereafter be explained'in detail and partlcularly po1nted out in theappended claims.

While in describing the invention reference Will be made to a particularembodiment thereof, I wish it to be understood that my invention is notlimited to the construction shown in the drawiings, and that variousfeatures thereof may be embodied in machines of difierent types.

For. the purpose of explaining the invention an example embodying thesame has been shown in the accompanying drawings, in which the sameletters of reference have been used in all the views to indicatecorresponding parts. In said drawings Figure l, is a longitudinalsection of the machine,

Fig. 2, is a plan view thereof partly in section,

Fig. 3 is a vertical section of the frame carrying the type wheel,"

Fig. 4 is a plan view of the mechanism for shifting the type wheel,

Fig. 5, is a partial longitudinal section showing the mechanism forthrowing the type wheel againstthe platen,

ig. 6, is a rear View of a part of the machine showing the mechanicalmeans for operating the type wheel,

Fig. 7, is a plan view of the parts shown in Fig. 5 for impartingthrowing or letterprinting movement to the type wheel,

Fig. 8, is a detail view showing the lower part of the type carrier andits frame,

Figs. 9 to 12, show the means for making the contacts controlling theelectromagnets of the machine,

Figs. 13 and 14, are detail views showing novel means for operating thecontacts,

Fig. 15, is' a vertical section of'the type wheel and the upper part ofthe type wheel shaft and showing means for readily mounting ordismountin the type wheel,

ig. 16, is a sectional View showing means for locking and releasing thecarriage at the ends ofits paths,

Fig. 17, is a planview of the parts shown in Fig. 16, and

Fig. 18, is a diagram showing the electrical connections of the machine.

Referring to the example illustrated in the drawings, my improvedmachine consists of a base plate 1, a medial plate '2, and a top plate3. The top plate and the base plate are connected with each other bypillars 4. Above the top platethe carriage is mounted on suitable guiderails, and on the carriage the platen 5 is mounted in an} knownorpreferred way.

The type carrier is provided by a type wheel 6 on which three sets oftypes are provided, and which is removably mounted on a shaft 7.Ordinarily the types ofthe'upper set are in printing position. I If itis desired toprint a sign from a type of the medial or lower set, thetype'wheel is shifted. For this purpose the shaft 7 is longitudinallyshiftable within a sleeve 8, rotation of the shaft relatively to thesleeve being prevented by means of a collar 11 secured to the shaft andprovided with a lug 11 moving in a longitudinal slot 11 of the sleeve.Between the said collar and a bushing 10 secured to the upper end of thesleeve 8 a s" ring 9 is interposed which normally forces t e shaft 7 andthe type wheel 6 downward and with the upper set of types in printingposition relatively to the platen.

The shaft 7 is mounted on a rocker plate I 12 on which two pillars 13and 14 .are mounted which are connected with each other at their upperends by a plate 15. To the middle art of the said plate a disk 16 issecured w ich provides the upper race of a ball bearing the lower raceof which is formed on the bushing 10. At its lower end the shaft 7 isformed with a reduced portion 17 which has rotary movement in acorresponding socket provided in a short bolt 18. The said bolt haslongitudinal shifting movement within a sleeve 19 which is secured tothe rocker plate 12 by means of a flange 20. Norfnallylongitudinalmovement of the bolt '18 relatively to the sleeve 19 is prevented bymeans of the spring 9 acting through the shaft 7. Within a transversebore made in the shaft 138. pin 21 is pro-- vided which projects withboth ends throu h longitudinal slots 22 of the sleeve y depressing oneof the shift key levers 25 or 26 the type wheel is shifted spectively inbearings 31, 32 and 33,34. The

rear ends of the key levers 25, 26 are located below pins 35, 36 securedto the rocking "frames 27 and 28 respectively. At their lower ends thelinks 29 and 30 are jointed to the inner arms of the frames 27 and 28respectively, and at their upper ends they are jointed to the transversepin 21.

The rocker plate 12 provides the armature of a printing or throwingelectromagnet 37, or asshown in Figs. and 6, it is secured to thearmature 38 of the said electromagnet.

The type wheel shaft 7 and the rocker plate. said pawl must be throwninto releasing are in the form of a bell crank lever which has a rockingsupport by means of ivots 39 and 40 mounted in bearings provi ed in ipillars 41 and 42.

- The downward stroke of the rocker plate 12 is limited by cushions 43and 44 made from felt or some other suitable material (Figs. 5 and 6).In order that the move-- ment of therocker plate be as'noiseless aspossible two further felt cushions 47 and 48 and two springs 49 and 50are secured to the said plate. When the rocker plate is being attractedby the electromagnet 37, the springs 49 and 50 strike at first on thecushioning members 43 and 44, whereupon they are bent and get intoengagement with the cushioning members 47 and 48 by means of which thestrokeof the rocker plate is finally limited. In order that also theupward stroke of the rocker late be limited in a noiseless way, two incinedsprings 51 and 52 are secured to the top face of the rocker plate,which springs are disposed in position for engagement by the cushionedinclined surfaces of adjustable stop members 53-and 54.

Before the ty e wheel strikes against the platen, and pre erably whilethe key levers are being depressed, the type wheel must be turned to theright or left at suchan angle, that the character or lettercorresponding to the depressed key is in position exactly opposite tothe printing point. This is eflected by the following mechanism: To thelower end of the sleeve 8 which incloses the type wheel shaft 7 a pinion55 is secured which is in mesh with a toothed sector 57 having a rockingsupport on an axis 56. Rocking movement is imparted to the said sectorby either one of two electromagnets 58 and 59 the armatu'res' 60 and 61of which are connected by a flexible tension element such as a wire 62and screws 64 and 65, the said tension element being also connected withthe sector by the screw 63. vBy means of the electromagnet 58 left handrockin movement is imparted to the type wheel ti w1re 62, and bythegelectromagnet 59 ri' ht hand movement is imparted thereto, an ineach case both armaturesare rocked, because the are positivel connectedwith each other an with the toot ed sector. For returning the sectorintomedial position a spring 66 is coiled around the axis 56 whichbears withboth ends'on a pin 67 secured to the rocker plate 12. To the sector apin 68 is secured which is likewise located between the ends of thespring 66. In-order that the; type wheel be not rocked beyond its medialposition after printing, the sleeve 8 is formed below the pinion 55withv a collar 69 which is formed with a notch adapted to be engaged bya pawl 70. The

position each time before one of the armatures 60 or 61 can rock thesector 57. and the type wheel 6. The mechanism provided for this purposewill. be described hereinafter.

The rotary movement of the type wheel to the right or to the left forsetting one of the types in printing position must be interrupted assoon as the type to be printed is in. printing position. In my improvedmachine this is done by means of a pair of sto arms 71 secured to thetype wheel shaft and adapted to strike against a pin which is operatedby the key lever being depressed and shifted thereby into the path ofone of the stop members. It will; be

understood, that each of the key levers operates a pin of its own, andall the pins aremountedon a circle which is concentric to the type wheelshaft. Therefore each pin is ada ted to arrest the type Wheel with aparticul artype of each set in rinting position. The construction oftlie stop mechanism so far described is known in machines which areprovided with a type improved machine in orderl to adapt the same to amachine in which the types are provided on atype wheel having rotarymovements in both directions. In a machine rough the intermediary. ofthecarrying sector, and it. is modified in my 7 of this class the knownmechanism can not be provided, because it would be necessary to arrangethe stop members on a complete circle, in which case it would bedifiicult .to connect. the same with the key levers. Therefore I havemodified the construction as follows:

To the sleeve 8 which incloses the type wheel shaft7 two arms 71 aresecured which coiiperate with radially disposed setting members 72 and73. The said setting members have rocking supports on a semi-circularrod 74, and their number is equal to the number of the types provided ineach set onthe type wheel and to the number of key levers correspondingthereto. When the type wheel is turned to the left the left hand arm 71strikes against the first, third, fifth, seventh, etc. setting member72, and when the type wheel is turned to the right the right hand arm 71strikes against the second, fourth, sixth, etc., setting member 72. Inthe machine shown in the drawings the key levers of the lower series areconnected with the first, third, fifth, etc., setting member, and thekey levers of the upper series are connected with the second, fourth,sixth, etc., setting member. l

The connection between the key levers and the setting members isshown'in Figs. 1 and 2. As shown in the said figures, the key levers 76are mounted on bifurcated pillars 77, and at their rear ends they areprovided with sockets 79 which are engaged by the lower ends of verticalrods 78 engaging with their upper ends disks 82 of radially mounted bellcrank levers 80, having rocking supports on a common' semi-circular rod81. The vertical arms of the said bell crank levers are bifurcated andbetween the bifurcated portions arms 83 and springs 83 acting thereonare mounted. When depressing a key lever, the corresponding arm 83 ismoved toward the shaft of the type wheel, and it rocks the cotiperatingsetting member 72 or 73 about its fulcrum provided by the rod 74 andinto position for stopping engagement with one of the stop arms 71. InFig. 1 the stop arm 71 is shown in rocked position.

The horizontal arms of the setting membars 72 and 73 bear on pairs ofrings 84, 85 and 86, 87, as is shown in Figs. 1, 9, 10, 11, and 12. Whendepressing a key and rocking the corresponding setting member 72 or 73,either the rings 84, 85 or the rings 86, 87 are forced downward. Thesaid rings are guided within each other and within a stationary ring 88which incloses the movable rings and rises from the base plate 2. Theyare formed with projections so as to provide longitudinal strips 84,85', 86,, and 87 between which bails 89, 90, 91, and 92 are jointed. Thesaid bails have rocking supports on a common shaft 93 mounted inbrackets 94 and 95, and they provide guides for the rings 84, 85,86, and87. The stri s 84, 85', 86', and 87 are notched at their ower ends insuch a way, that the two outer rings 84 and 85 both act on contactlevers 96 and 97, while the inner rings 86 and 87 act on con tact levers98 and 99. The levers 96, 97 98, and 99 have rocking supports inbrackets 100, 101, 102, and 103, and they are actedupon by springs 104,105, 106, and 107, which tend to lift the rings 84, 85, 86, and 87 intoengagement with the horizontal arms of the setting members 72 and 73.The levers 96, 97 98 and 99 have contact springs 108, 109, 110, and 111secured thereto which are 10- nets 37, which includes the springs 108and 110, is closed later, as will now be described.

The armatures 60 and 61 of the rotating electromagnets are equipped withcontact making arms 116 and 117 respectively, to which the contactscrews 112 and 114-are secured. If one of the armatures 60 or 61 isrocked, the corresponding contact screw 114 or 112 is likewise rockedand moved downward and toward the coiiperating con tact spring 110 or108 which is located below the same.

Simultaneously therewith or slightly before, the contact spring 108 or110'is moved upward and toward the cotiperating contact screw. Thereforethe circuits of the printing electromagnets which are controlled by thecontacts 112, 108 and 114, 110 respectively are closed after thecircuits of the rotating electromagnets which are controlled by thecontacts 109, 113 and 111, 115 are made. i The object of theconstruction of the con tact making devices cooperating with theprinting electromagnets is the following: As has been explained above,in viewof the rapid operation of the machine it is desirable, that thetype wheel rotating movement and the printigg movement be performed asfar as possible simultaneously, the rotary movement however beingcompleted before the type wheel strikes against the platen. If the angleat which. the type wheel is to be turned is but small, printing may beperformed more rapidly, than in such cases where the said angle iscomparatively large. By constructing the contact making devices in sucha way, -that the contacts for the printing electromagnet are made by therocking movements of the armatures of the rotating electromagnets,printing can not be premature. As the rotating electromagnet is alreadymoving when the printing electromagnet is being energized, it arrives atthe end of its movement before the printing electromagnet has completedthe printing operation. Under any circumstances the contact for theprinting electromaget must be made so late, that the type wheel cancomplete its rotation before printing is completed, and for this purposethe contact making devices must be set according to the maximum angle atwhich the type wheel can be turned. However in such cases in which therotation is completed comparatively early, the circuit of the printingelectromagnet is closed unnecessarily late, so that in such cases thevelocity of printing is unnecessarily small, though apart from thisconsideration, it would be possible to print so much the sooner, thesmaller the angle of rotation of the type wheel is. To avoid thisdisadvantage, my machine is constructed as follows: As has beendescribed above, by each operation of the setting members 72 and 73 twoof the rings 84, 85 and 86, 87 are depressed. As is best shown in Figs.13 and 14 one of the said rings is-made at its top in the form of a halfscrew-thread. Therefore it is forced downward by the setting members 72and 73 a distance which is different in all the setting members, andwhich corresponds to the angle of rotation of the type wheel. As themovement of the ring is transmitted to the cooperating contact spring108 or 109, the said spring is moved toward the cooperating contactscrew a greater or less distance. Furthermore the strokes of the contactscrews are different, because the stroke of the armature of the rotatingelectromagnet varies according to the angle at which the type wheel isturned. The parts are so arranged, that where the stroke of the rotatingarmature is small the stroke of the contact spring is increasedaccordingly, and vice versa. Therefore, when the type wheel is turned ata small angle, the contacts of the circuit including the printingelectromagnet are closed so much the earlier.

The rings 84, 85, 86, and 87 are adapted to rock a crank 118 downward.The said crank is provided with an upright arm 118' the upper end ofwhich is engaged in a slot made in the type wheel locking pawl 70.Therefore whenever a key is depressed, the pawl 70 which normally locksthe type wheel against rotation is rocked into releasing position, sothat the type wheel can be rotated. The crank 118 has a rocking supportin bearings 135 and 136, and it is normally held by a spring 119 incontact with an adjustable cushion 120. and is returned by the saidspring into its position of rest, as soon as the rings which have rockedthe crank have returned into their normal positions. Thereby also thepawl 70 is returned into initial position and, after the type wheel hasre turned into normal position. into locking engagement with the typewheel shaft. The cushion 120 can be set by being mounted on a screw bolt120'. Thereby the end position of the arm 118' and the pawl 7 0 can beset in such a way, that the said pawl can not fall with its locking noseon the bottom of the notch made in the collar 69 nor slide on the saidcollar. Thereby the pawl gets into lock: ing engagement without anynoise, and when the type wheel is returning into initial position,friction of the type wheel shaft is prevented.

When depressing a key, the rocker plate 12 strikes on a setting ring 121secured to a rod 122, so as to shift the said rod downward. The rod isjointed at its upper end to an arm 123 and at its lower end to a rockmglever 124. By the downward movement of the arm 123 a letter spacingmechanism 126 of any known or preferred construction s thrown intooperatlon, which mechanism 1s operatlvely connected with a spur gearing125. Simultaneously, through the intermediary of setting rings 127 and128 a bail 131 is rocked which has a rockin support on plvots 129 and130, and which is located with 1ts curved part adjacent to the fingers83 of the arms 83. By the said bail the arm 83 whlch before was shiftedforward by the key being depressed and into posit1on wlth its fingerabove the bail 131 is thrown into releasing position, so that the settng member 72 or 73 can be returned by 1ts spring 132 into inoperativeposition. Thereby the rings 84, 85, 86, and 87 and the contact springscontrolled thereby are likewise returned into inoperative positions,together with all the parts controlled by the electromagnets. It willreadily be understood, that this returning operation is entlrelyindependent of the key which may still be in depressed position. In thesame way the letter spacing mechanism 126 advances the carriage, even ifthe key is still in depressed position.

As after throwing the arm 83 into releasing position the setting member72 or 73 must first be returned into normal position by the spring 132,and the contact springs whlch by their operation were bent remain ashort time in contact with their terminals until they have assumed theirstraight form, and as on the other hand the type wheel is already movingtoward the platen, when the arm 83 is being thrown into releasingposition the letter is necessarily printed before the current isactually interrupted. If the current were interrupted before printing iscompleted, the type wheel would be rotated backward before reaching theplaten, and

printing would not be effected with sufficient force. But what would bemost objectionable is that the correct character would not be printed onthe paper, because the type wheel would already have been turned intoinitial position or into an intermediate position. In my improvedmachine the breaking of the circuits is initiated during the printingoperation, and it is retarded by the intermediate members 72, 73, or84', 85, 86, 87, 108, 109,- 110, and 111, which begin their returnmovements when the arm 83 is being released. Thereby the moment at whichthe circuit is broken is made independent of the moment at whichprinting takes place. Of course, the current -result aimed at .by me,and which consists in breaking the circuit immediately after printingbut under no circumstances before printing. Therefore in my improvedmachine I am enabled to depress several of the keys and yet to operateother keys. After releasing the keys, the arms 83 are at once returnedby their springs 84 into operative positions.

The space key has been indicated by the numeral 133. It is provided on akey lever 134. When depressing the space key 134 the lever 124 which isoperatively connected with the spacing mechanism 126 is actuated and thecarriage advanced one space. i

The horizontal arms of the setting members 72, 73 which are locatedabove the rings 84, 85, 86, and 87 are bent laterally toward each otherand in such a way, that the longer arm of the setting members 73 arelocated above the shorter arms of the setting members 72, so that theends of adjacent arms are disposed within the same radial plane. Therebyone half of the space which would otherwise be necessary for disposingthe ends of the arms is'spared, which is a considerable advantage inconstructing the machine. Thereby the machine requires less space, andthe size of the movable parts is reduced, so that they are more easilymoved, and by reducing the masses of the movable parts their speed andtherefore the speed of the machine are increased.

In order that the type wheel may readily be mounted on or dismountedfrom the type wheel shaft, I prefer to construct the same in the mannershown in Figs. 3 and 15. To the upper end of the type wheel shaft 7 asleeve 137 is secured, which is made integral with a' transverse block138 which is provided atv one-of its ends with an upright pin 140. Abovethe block 138 a spring 139 is coiled around the sleeve 137. The part ofthe sleeve which is located above the plate is adapted to receive thetype wheel which for this purpose is formed with a central sleeve 6'.The upper part. of the sleeve 137 is provided with two longitudinalslits 6 which are diametrically opposite to each other, and within thesaid part of the sleeve a U-shaped spring 141 is embedded which is madeat the upper ends of its shanks in the form of locking pawls 142 whichare pointed at their-top ends. Both locking pawls are locatedsymmetrically of the axis of the sleeve, and they project laterally ofthe slits 6 Above the locking pawls a push button 143 is located withinthe sleeve which projects upward and beyond the upper margin of thesleeve and is formed at its bottom end with a notch 144 engaged by theupper points of the locking pawls. The locklng pawls have the tendencyto spring outward, and the beveled faces on which the button 143 bearsforce yield at first backward and into the sleeve their spring action,and the spring 139 is pressed together, but finally the pawls springbackward so as to engage above the upper; surface of the type wheel,whereupon the type wheel can be released and is forced by the spring 139against the locking pawls.

If it is desired to take the type wheel away from the shaft 7, thebutton 143 is slightly depressed. Thereby the pawls are forced into thesleeve by reason of the beveled faces, so that the type wheel isreleased and forced upward by the spring 139, whereupon it can easily beremoved.

Instead of the locking pawls shown in the drawing a spring member havinga single locking pawl may be provided, or if desired more than twolocking spring members may be employed. Furthermore instead of mountingthe locking pawls on rocking spring arms, they may be disposed in anysuitable Way, provided they are adapted to yield by spring action.

spacing mechanism 126 whenever the rod 122 is pulled downward either bythe armature of the printing electromagnet or by depressing the key 133.It is necessary to limit the movement of the carriage at both ends inorder to fix the margin and the endof the line. In my-machine two slidemembers 145 and 146 are provided for this purpose, which are mounted ona rack 147 connected with the carriage and provided with scalemarks. Forsetting the left hand margin or the beginning of the line the slide 145is used, which is" provided at its bottom side with a ncse 148,cooperating with a pin 149 projecting through the top plate of the frameand adapted to be engaged at its left side by the nose 148. Also theslide 146 cooperates with the pin 149, and it is arranged in positionfor stopping the paper carriage on its movement to the left. For thispurpose the construction is such, that the circuit which connects theelectromagnets and the terminals thereof is interrupted when the slide146 strikes against the pin 149. The pin 149 is disposed on a bell cranklever 150 which is disposed below the top plate 3 and carries on itsdownwardly projecting arm a pressure roller 151. The pressure rollerbears 011- a on sp ing 152 h ch is secured to a pillar 153 rising fromthe lower base plate 1 and insulated therefrom. The lower'end of thecontact spring is dis osed between two contact screws 154 an 155 whichare secured to and insulated from a bracket 156 mounted on the pillar153, and which are electrically connected with each other.-

Normally the spring 152 bears on the contact screw 154 so that thecircuit is closed. When the slide 146 strikes with its left hand loweredge 146 on a beveled face 149 formed on the right hand side of the pin149, the pin is forced downward so as to rock the lever 150. Thereby thepressure roller 151 forces the contact spring 152 away from the contactscrew 154 to such an extent, that it is held at a distance bet-ween bothcontact screws 154 and 155. Now the circuit is interrupted, so that thecarriage can not be moved, nor the type wheel rotated nor thrown againstthe platen, when other key levers are depressed.

Now it frequently happens, that at the end of a line a few letters mustbe printed in order to complete a syllable. In order that this can bedone in my improved machine, the contact screw 155 is provided. The bellcrank lever 150 is mounted on a rock shaft 157 which extends'to 'thefront and upper part of the machine casing, where it is equipped with acrank 158. If the shaft is rocked by means of the crank beyond itsintermediate position between contact screws 154 and 155 the contactspring engages the contact screw 155. Thereby the circuit whichbeforewas interrupted by the pin 149 being depressed by the slide 146 isagain closed. When returning the slide the pin 149 is again released,and the contact spring returns into normal position and into engagementwith the contact screw 154.

Furthermore, by returning the crank 158 the stop pin 149 can beretracted and the carriage shifted so far to the right, that the lefthand slide 145 moves above the pin. Thereupon the left hand margin canbe printed upon. When thus writing on the margin the slide 145 is movedwith the carriage to the left and toward the pin 149, which has returnedinto advanced position, and when it strikes with its left hand lowerpart on the pin 149, the circuit is broken, so that the remarks made onthe margin are not continued beyond the left hand marginal line of theordinary line. When shifting the carriage and the slide 145 to the leftthe nose 148 slides with its beveled left hand-face.

over the pin, whereupon the slide and the carriage are in their normalpositions.

The electrical connection between the rotating electromagnets 58, 59,the printing electromagnets 37 and the individual contacts is shown in adiagrammatical way in Fig. 18. As appears from the description beblurred by the type wheel starting its return'rotary movement prior tothe return movement away from the platen, for which purpose the rotatingelectromagnet is deenergized simultaneously with the printingelectromagnet, so that no force acts on the type wheel during its returnmovement which could stop any of its movements. For this purpose at theside of the contact screws 113 and 115 contact screws 113 and 115'respectively are provided, which are connected with each other by aconductor X and cotiperate with the contact springs matted 111;

For connecting the machine with the source of electric energy twoterminals are provided on an insulating block 159 to which conductors Iand V are connected. The conductor I includes the contact spring 152mounted on the pillar 153 and leads to a connecting block 160, to whichfurther conductors II, VI, and XI are connected, which conductors areconstantly connected with one another, and with the conductor I.According as the rotating electromagnet 58 or the rotating electromagnet59 is to be thrown into operation by the key being depressed; thefollowing circuits are made:

When, depressing av key which controls the rotating electromagnet 58, atfirst the contact spring 111 is lifted which, moves the contact 115 and115 into position for closing the circuits controlled thereby. Therebythe following circuit is closed: from the terminal, over'I, 160, II, 58,III, 115, 111, IV, V, and back to the terminal. The armature of theelectromags net 58 which is being attracted rocks the lever 116 with itscontact screw 114 toward the contact spring 110. Thereby a circuit isclosed from the terminal, over I, 160, VI, 110, 114, 116, VII,VIII,printin'g electromagnet 37, IX, 115, 111, IV, V, and back to theterminal, so that also the printing electromagnet is energized. As bothcircuits include the contact spring 111, they are simultaneously brokenby the said contact spring. Similar conneqtions are made in case a keyis being depressed which.

spring 109 closes a circuit at the contacts 113 and 113. Thereupon thecurrent asses from the terminal, over I, 160, 59, XII, 113, 109, V, andto the terminal. As the armature of the electromagnet 59 is beingattracted, the contact 108, 112, is closed, whereupon a second circuitis made as follows: from terminal,.over I, 160, VI, XIII, 108, 112, 117,VIII, printing electromagnet 37, IX, X, 113', 109, V, and back to theterminal. Thereby also the printing electromagnet is thrown intooperation, and if thereafter the contact spring 109 is retracted fromthe contact screws 113, 113, the printing and rotating electromagnetsare simultaneously, denergized. Thereby the return movement of the typewheel into position of rest is accelerated, and the speed of writingincreased, and the letter which has been printed can not be blurred bythe type wheel beginning its return rotary movement before being movedout of contact with the paper.

In the claims the contacts 113' and 115' are referred to as main circuitmaking and breaking means for the'electrical throwing means, and thecontacts 112 and 114 are described as additional circuit making andbreaking means. The main circuit making and breaking means or contacts113 and 115' are controlled by the same operating members 109 and 111respectively as the circuit making and breaking means 113 and 115 whichcontrol the electrical turning means for the type carrier, so that theelectrical turning and throwing means are simultaneously madeinoperative, and the rotary return movement of the type carrier intoinitial position is not started before the return movement of the typecarrier away from the platen has been started.

I claim herein as my invention:

1. In a typewriting machine, the combination with the platen, and arotatable type carrier having circumferentially arranged types, of meansfor turning the type carrier with one of the types in printing position,means for throwing the type carrier toward the platen, means foroperating the turning means, means controlled-by said turning means foroperating the throwing means, means for simultaneously throwing saidturning and throwing means out of operation, and means to return thetype carrier into initial position.

2. In a typewriting machine, the combination with the platen, and arotatable type carrier having circumferentially arranged types, of meansfor turning the type carrier with one of the types in printing position,means for throwing the type carrier toward the platen, means foroperating the turning means, means controlled by said turning means foroperating the throwing means, means independent of the operating meansfor the throwing means for simultaneously throwing said turning andthrow ing means of operation, and means to return the type carrier intoinitial position.

3. In a typewriting machine, the combina-' tion with the platen, and arotatable type ing said power operated turning and throwing means out ofoperation, and means to return the type carrier into initial position.

4. In an electrical typewriting machine, the combination with theplaten, and a type carrier having circumferentially arranged types, ,ofelectrical means for turning the type carrier with one of the types inprinting position, electrical means for throwing the type carrieragainst the-platen, circuit making and breaking means for the electricalturning means, main circuit making and breaking means for the electricalthrowing means, common operating means for the circuit making andbreaking means for the turning and throwing means, additional circuitmaking and breaking'means for said throwing means arranged in serieswith the first named circuit making and breaking means for the throwingmeans, means operative after said common operating means for operatingsaid additional circuit making and breaking means, and means forreturning the type carrier into initial position.

5. In an electrical typewriting machine, the combination with theplaten, and a type carrier having circumferentially arranged types, ofelectrical means for turning the type carrier with one of the types inprinting position, electrical means for throwing the type carrieragainst the platen, circuit making and breaking means for the electricalturning means, main circuit making and breaking means for the electricalthrowing means, common operating means for the circuit making andbreaking means for the turning and throwing means, additional circuitmaking and breaking means for said throwing means arranged in serieswith the first named circuit making and breaking means for the throwingmeans and con-' trolled by the electric turning means, and means forreturning the type carrier into initial position.

6. In a typewriting machine, the combination with the platen, and arotatable type carrier having circumferentially arranged types, of poweroperated means for turning the type carrier with one of the types inprinting position, power operated means for throwlng the type carriertoward the platen, means for first throwing the power operated turningmeans and thereafter th power operated throwing means into opera-- tion,mechanical means for simultaneously rendering both power operated meansinoperative, hand operated means for throwing said power operated meansinto operation, automatic means operative upon the actuation of the typecarrier to disconnect said hand operated means, and means for returningthe type carrier into initial posi tion.

7. In an electrical typewriting machine,

the combination with the platen, and a type for the turning and throwingmeans, additional circuit making and breaking means for said throwingmeans arranged in series with the first 'named circuit making andbreaking means for the throwing means and controlled by the electricturning means, hand operated means for throwing said circuit making andbreaking means into operation, automatic means operative upon theactuation of the type carrier to disconnect said hand operated means andpower operated means, and means for returning the type carrier intoinitial position.

8. In a typewriting machine, the combination with the laten, a typecarrier having circumferentia ly arranged types, power operated meansfor turning the type carrier with either one of its types in printingposition, power operated means for throwing the type carrier against theplaten, and means for returning the type carrier into initial position,of mechanism for throwing said power operated means into operationcomprising hand operated means, levers adapted to be rocked by said handoperated means, rocking members on said levers, rockers adapted to beshifted by the rocking members into positions for arresting the turningmovement of the type-carrier, means adapted to be operated by aplurality of said rockers and to throw said power operated means intooperation, and a member automatically operated upon operation of thepower operated means to rock said rocking members out of operativeposition.

9. In an electrical typewriting machine the combination with a typecarrier having circumferentially arranged types, a platen, e ectricalmeans for tur ing the type carrier with either one of the types inrinting position, and electrical means for throwing the type carrieragainst the platen, of contact making devices for the electric turningand throwing means comprising contact carrying members one for t eturning and one for the throwing means, slidable members for operatingsaid contact carrying members,-.a plurality of hand operated memberseach adapted to actuate both said slidable members, means controlled bythe electrical turning means and cooperating with the contact carryingmember for the throwing means for closing the circuit of the electricalthrowing means, and means for returning the ty e carrier into initialposition.

10. 11 an electrical typewriting machine the combination with a typecarrier having circumferentially arranged types, a platen, electricalmeans for turning the type carrier with either one of the types inprinting position, and electrical means for throwing the type carrieragainst the platen, of contact making devices for the electric turningand throwing means comprising contact carrying rocking levers, slidablemembers for rocking said levers, hand operated means for actuating saidslidable members, means controlled by the electrical turning means andcooperating with the contact carrying lever for the throwing means forclosing the circuit of the electrical throwing means, and means forreturning the type carrier into initial position.

- 11. In an electrical typewriting machine the combination with a typecarrier having circumferentially arranged types, a platen, electricalmeans for turning the type carrier with either one of the types inprinting position, and electrical means for throwing the type, carrieragainst the platen, of contact making devices for the electric turningand throwing means comprising contact carrying rocking levers, slidablemembers for rocking said levers, hand operated means for actuatlng saidslidable members, and means controlled by the electrical turning meansand cooperating with the contact carrying lever for the throwing meansfor closing the circuit of the electrical throwing means, automatic andsimultaneously operative means for throwing both electric means out ofoperation, and automatic means to return the type carrier into initialposition.

12. In an electrical typewriting machine the combination with a typecarrier having circumferentially arranged types, a platen, anelectromagnet and its armature for turning the type carrier with eitherone ofthe types in printing position, and electrical means for throwingthe type carrier against the platen, of contact making devices for theelectromagnet and electric throwing means comprising contact carryingrocking levers, slidable members for rocking said levers,

1 hand operated means for actuating said slidable members, and a contactmaking member connected with the armature of the electromagnet andcooperating with the contact carrying lever for the throwingmeans forclosing the circuit of the electrical throwing means, and means forreturning the type carrier into initial position.

13. In an electrical typewriting machine the combination with a typecarrier having circumferentially arranged types, a platen,

an electromagnet and its armature for turning the type carrier witheither one of the types printing position, and electrical meansforthrowing the type carrier against theplaten, of contact making dcvicesfor the electromagnet and electric throwing means comprising contactcarrying rocking levers, hand operated means for actuating said rockinglevers, and a contact making member connected with the armature of theelectromagnet and cooperating with the contact carrying lever for thethrowing means for closing the circuit of the electrical throwing means,and means for returning the type carrier into initial position.

14. In an electrical typewriting machine, the combination with a platen,a type carrier having circumferentially arranged types, electrical meansfor turning the type carrier with either one of its types in printingposition, electrical means for throwing the type carrier, against ,theplaten, and means for returning the type carrier into initial position,of mechanism for throwing said electrical means into operationcomprising hand operated means, concentrically arranged slidablecylindrical members adapted to be actuated by said hand operated means,a plurality of rocking contact levers adapted to be simultaneouslyrocked by said cylindrical members and provided respectively for closingthe circuits of the electrical turning and throwing means, and

means to throw said electrical means out of operation.

15. In an electrical typewriting machine, the combination with theplaten, a type carrier having circumferentially arranged types,electrical means for turning the type carrier with either one of itstypes in print ing position, electrical means for throwing the typecarrier against the platen, and means for returning the platen intoinitial position, of mechanism for throwing said electrical means intooperation comprising hand operated means, a plurality of concentricallyarranged slidable cylindrical members adapted to be actuated by saidhand operated means and having extensions in the form of strips, aplurality of rocking contact levers engaged by said extensions andadapted to be simultaneously rocked by said cylindrical members andprovided r espectively for closing the circuits of the electricalturning and throwing means, and means to throw said electrical means outof operation.

16.'In an electrical typewriting machine, the combination with theplaten, a type carrier having circumferentially arranged types, doubleelectrical means for turning the type carrier one to the right and theother one to the left and with either one of its types in printingposition, electrical. means for throwing the type carrier against theplaten, and means for returningthe platen into initial position,ofmechanism for throwing said electrical means into operationcomprisingtwo pairs of concentrically arranged slidable cylindrical members, twosets ofhand operated means adapted to actuate each one of said pairs ofcylindrical members, two pairs of rocking contact levers each pairadapted to be rocked by one of said pairs of cylindrical members andprovided for closing the circuits of the electric throwing means and ofone of the electrical turning means, and means to throw said electricturning and throwing means out of operation.

17. In an electrical typewriting machine, the combination with theplaten, a type carrier having circumferentially arranged types, doubleelectrical means for turning, the type carrier one to the ri ht and theother one to the left and with either one of its types in printingposition, electrical means for throwing the type carrier against theplaten, and means for returning the platen into initial position, ofmechanism. for throwing said electrical means into operation comprisingtwo pairs of concentrically arranged slidable cylindrical members, twosets of hand operated means adapted to actuate each one of said pairs ofcylindrical members, two pairs of rocking contact levers. each pairadapted to be rocked by one of said pairs of cylindrical members andprovided for closing the circuits of the electric throwing means and ofone of the electrical. turning means, a contact member adapted to beoperated by said electrical turning means and cooperating with thecontact lever for closing the circuit of the electrical throwing means,and means to throw said electric turning and throwing means out ofoperation. a

18. In an electrical typewriting machine, the combination with theplaten, a type carrier having circumferentially arranged types, doubleelectrical means for turning the type carrier one to the right and theother one to the left and with either one of its types in printingposition, electrical means for throwing the type carrier against theplaten, and means for returning the platen into initial position, ofmechanism for throwi g s e ect cal mea s into 0 eration comprising twopairs of concentri- 'cally arranged slidable cylindrical mem-- bers, twosets of hand operated means ada ted to actuate each one of" said pairsof cylindrical members, two pairs of rocking contact levers each pairadapted to be rocked by one of said pairs of cylindrical members andprovided for closing the circuits of the etectric throwing'means and ofone of the e ectrical turning means, two contact members adapted to beoperated respectively by said electrical turning means and cooperatingrespectively with the contact levers for closing the circuit of theelectrical throwing means, and means to throw said electric turning andthrowing means out of operation.

19. In an electrical typewriting machine, the combination with theplaten, a type carrier having circumferentially arranged types,electrical means for turning the type carrier with either one of itstypes in printing position, electrical means for throwing the typecarrien against-the platen, and

means for returning the type carrier into,

, initial position, of mechanism for throwing said electrical means intooperation comprising hand operated means, concentrically arrangedslidable cylindrical members adapted to be actuated by said handoperated means, rocking members connected one with each of saidcylindrical members for guiding the same and mounted on the same axis,rockin contact levers adaptedto be simultaneous yv rocked by saidcylindrical members and provided respectively for closing the circuitsiof'athe electrical turning and throwing means, and means tethrow saidelectrical means out of operation. 7

20. In an electrical type-writing machine,

-the combination with the platen, a type carrier havingcircumferentially arranged types, double electrical means for turningthe type carrier one to the-right and the other one to the left and witheither one of its types in printing position, electrical means forthrowing thetype carrier against the platen, and means for returning theplaten into initial position, of mechanism for throwing said electricalmeans into operation comprising two pairs of concentrically arrangedslidable cylindrical members, rockmembers connected one with each ofsaid cylindrical members I for guiding the same and mounted on the sameaxis, two

sets of hand operated means adapted to actuate each one of said pairs ofcylindrical members, two pairs of rocking contact levers each pairadapted to be rocked. by one of said dpairs of cylindrical members andpro vide for closing the circuits of the electric throwing means andof'one of the electrical turning means, and means to throw saidelectrical turning and throwing means out of operation.

21. In an electrical typewriting machine, the combination with theplaten, a typo carrier having circumferentially arranged types, poweroperated means for turning the type carrier with either one of its typesin printin position, electrical means for throwing tile type carrieragainst the platen, and means for returning the platen into initialposition, of mechanism for throwing, said electrical, means intooperation comprising hand operated means, concentrically arrangedslidable cylindrical members adapted to be actuated by said handoperated means and having extensions in the form of strips, rockingmembers connected with strips of each of said cylindrical members forguiding the same and mounted on the same axis, two sets of hand operatedmeans adapted to actuate each one of said pairs of cylindrical members,two pairs of rocking contact levers, each pair adapted to be rocked byone of said pairs of cylindrical members and provided for closing thecircuits of the electric throwing means and of one of the electricalturning means, and means to throw said electric turning and throwingmeans out of operation.

.22. In a typewriting machine, the combination with the platen, and arotatable type carrier having circumferentially arranged types, of poweroperated means for turning the type carrier with one of the types inprinting position, power operated means for throwing the type carriertoward the platen, operating means one for each of said power operatedmeans, a plurality of hand operated means each adaptedzto actu to thehand operated means that the operating means for the power operatedthrowing means are engaged after the operating means for the poweroperated turning means, means to throw said power operated means out ofoperation, and means to return the type carrier, operating means, handoperated means and stop members into normal positions.

23. In a typewrting machine, the combina tion with theplaten, and arotatable type carrier having circumferentially arranged types, of poweroperated means for turning the type carrier with one of the types inprinting position, power operated means for throwing the type carriertoward the platen, operating means one for each of said power operatedmeans, a plurality of hand actuated means each adapted to actuate bothoperating means, stop members controlled by the relatively to the,platen, the operating means for the power operated means being sodisposed relatively to the hand operated means that the operating meansfor, the power operated throwing means are engaged after the operatingmeans for the power operated turning means and that the strokes afterwhich the hand actuated means engage the operating means for thethrowing means are diiferent for the individual hand actuated means,means to throw said power operated means out of operation, and means toreturn the type carrier, operating means, hand actu. ated means and stopmembers into normal positions.

24. In a typewriting machine, the com bination with the platen, and arotatable type carrier having tcircumferentially arranged types, ofpower operated means for turning the type carrier with one of the typesin printing position, power operated means for throwing the type carriertoward the platen,loperating means respectively controlling said poweroperated means, aplurality of hand operated means each adapted toactuate both operating means, stop members' controlled by the handactuated means and adapted to arrest the type carrier indifferent rotarypositions-relatively to the platen, the operatingmeans for the poweroperated means being so disposed relatively to the hand operated meansthat the operating means for the power operated throwing means areengaged after the operating means for the power operated turning means,simultaneously operative means to throw both ,said power operated meansout of operation, and means to return the type carrier, operating means,hand operated means and stop members into normal positions.

25. In a typewriting machine, the combination with the platen, and arotatable type carrier having circumferentially arranged types, of poweroperated means for turning the type carrier with one of the types inprinting position, power operated means for throwing the type carriertowardthe platen, operating means respectively control- 1 ling saidpower operated means, a plurality of hand operated means each adapted toactuate both operating means, stopmembers controlled by the handactuated means and adapted to arrest the-type carrier in differentrotary positions relatively to the platen, the operating means for thepower operated means being so disposed relatively to the hand operatedmeans that the operating means for the power operated throwing means areengaged after the operating means for the power operated turning meansand that the strokes after which the hand operated means engage theoperating means for the throwing means are diiferentffor the individualhand operated means, simultaneously operative means to throw said powermeans,

relatively to the hand ,erated means,

both operating means,

operating means ated means and positions.

operated means out of operation, and means to return the type carrier,operating means, hand operated means and stop members into normalpositions.

26. In an electrical t .pewriting machine, the combination with theplaten, and a rotatable type carrier having circumferentially arrangedtypes, of electrical means for turnin* printing position, electricalmeans .for throwing th type carrier toward the platen, operating meansfor. each of the electrical a plurality of hand operated means eachadapted to actuate both operating \means, stop members controlled by thehand actuated means and adapted to arrest the type carrier in diflerentrotary positions relatively to the platen, the operating means for theelectrical means being so disposed operated means that the operatingmeans throwing means are engaged after the operating means for theelectrical turning means, means to throw said power operated means outof operation, and means to return the type carrier, operating means,hand opand stop members into normal positions.

27. In an electrical typewriting machine, the combination with theplaten, and a rotatable type carrier having circumferentially arrangedtypes, of electrical means for turn: ing the type carrier with one ofthe types in printing position, electrical'means for throwing the typecarrier toward the platen, operating means respectively controlling saidelectrical means, a plurality of hand operated means each adapted toactuate stop members controlled by the hand actuated means and adaptedto arrest the type carrier in different rotary positions relatively tothe platen, the operating means for the electrical means being sodisposed relatively to the hand operated means that the operating meansfor the, electrical throwing means are engaged after the operating meansfor the electrical turning means and that the strokes after which thehand operated means engage the for the throwing means are dlfi'erent forthe individual hand operated means, means to throw said electrical meansout of operation, and means to return the type carrier, operating means,hand operstop members into normal 28. In an electrical the combinationwith tatable type carrier having circumferentially arranged types, ofelectrical means for turning the type carrier with either one of thetypes in rinting position, electrical means for throwing the typecarrier toward the platen, operating means respectively typewritingmachine, the platen, and agrocontrolling the electrical means, aplurality mg the type carrierf with one of the'types for the electricalof hand operated means each adapted to actuate both operating means,stop members controlled by the hand actuated means and adapted to arrestthe type carrier in different rotary positions relatively to the platen,the operating means for the electrical means being so disposedrelatively to the hand operated means that the operating means for thelectrical throwing means are engaged after the operating means for theelectrical turning means, simultaneously operative means to throw saidelectrical means out of operation, and means to return the type carrier,operating means, hand operated means, and stop members into normalpositions.

29. In an electrical typewriting machine, the combination with thplaten, and a rotatable typecarrier having circumferentially arrangedtypes, of electrical means for turning the type carrier with one of thetypes in printing position, electrical means for throwing the typecarrier toward the platen, operating means respectively controlling saidelectrical means, a plurality of hand operated means each adapted toactuate both operating means, stop members controlled by the handactuated means and adapted to arrest the type carrier in differentrotary positions relatively to the platen, the operating means for theelectrical means being so disposed relatively to the hand operated meansthat the operating means for the electrical throwing means are engagedafter the operating means for the electrical turning means and that thestrokes after which the hand operated means engage the operating meansfor the throwing means are difl'erent for the individual hand operatedmeans, simultaneously operative means to throw said electrical means outof operation, and means to return the type carrier, operating means,hand operated means and stop members into normal positions.

30. In an electrical typewriting machine, the combination with theplaten, and a type carrier having circumferentially arranged types, ofelectrical means for' turning the type carrier with one ofthe types inprinting position, electrical means for throwing the type carrieragainst the platen, circuit making and breaklng means for the electricalturning and throwing means, a plurality of concentric rings respectivelycontrolling said circuit making and breaking means and one of themhaving its end face substantially in the form of a screw-thread, aplurality of hand operated members disposed around said rings and eachadapted to engage said end faces of the rings so as to successivelyoperate the rin and means to return, said type carrier, circuit makinand breaking means, and rings into initia positions.

31. In an electrical typewriting machine, the combination with theplaten, and a type carrier having circumferentially arranged types, ofelectrical means for. turning the type carrier one to the right and theother one to the left and with either one of the t pes in printingposition, electrical means or throwing the, type carrier against theplaten, circuit making and breaking means for the electrical turning andthrowing means, two pairs of concentric rings the rings of each pairrespectively controlling the circuit making and breaking means for theelectrical turning and throwing means and one ring of each pair havingits end face substantially in the form of a screwthread, a plurality ofhand operated members dlsposed around said rings and alternately.adapted to engage the end faces of the rings of the inner and outerpairs so as to successively operate the rings of each pair, and means toreturn said type carrier, circuit making and breaking means and ringsinto initial positions.

32. In an electrical typewriting machine, the combination with theplaten, and a type carrier having circumferentially arranged types, ofelectrical means for turning the type carrier one to the right and theother one to the left and with one of the types in printing position,electrical means for throwing the type carrier against the platen,circuit making and breaking means for the electrical turning andthrowing means, two pairs of concentric rings the rings of each pairrespectively controlling the circuit makmg and breaking means for theelectrical turning and throwing means and one ring of each pair havingits end face substantially in the form of a screw-thread, a plurality ofhand operated members disposed around said rings'and alternately adaptedto engage the end faces of the rings of the inner and outer pairs so asto successively operate the rings of each pair, adjacent hand operatedmembers being disposed with their engaging ends substantially within thesame radial plane, and means to return said type carrier circuit makingand breaking means and rings into initial positions.

33. In a typewriting machine, the combination with the platen, and atype carrier having circumferentially arranged types and disposed on arotatable shaft, a lockin member in nose and notch engagement with theshaft and adapted to lock the shaft and type carrier in medial position,and hand returning the type carrier into initial posielectrical meansfor turningthe type carrier with either one of its types in printing po-34. In a typewriting machine, thecombisltion, electrical-means forthrowing the i nation with the platen and a typecarrier type carrier,against the platen, and'means having circumferentially arranged types orreturning the "type; carrier into initial and disposed on a rotatableshaftya lockm position, of mechanism for throwing'said o member in noseand notchengagement wit ffelectrical means into operation vcom rising 85the shaft and'adapted to lock the shaft and hand operated -means,fconcentrica 1y artype carrier in medial position, and hand rangedslidable cylindrical members adaptoperated means for throwing saidlocking -ed to be 'actuated by said hand operated member in non-lockingposition,'-of power m an s n-ope a ive onne tion between One operatedmeans for turning the type carrier of said cylindrical members and therocking 40 with one of the types in rinting position, lever and adaptedto throw said rocking power operated means or throwing the lever innon-locking position, rocking memtype carrier toward the platen, meansfor bers connected one -W1th each of said cylin first throwing, thepower operated turning drical membersfor guiding the same and means andthereafter the power operated mounted on the same axis, rocking contactthrowing means into operation, means for levers adapted to be rocked bysaid cylinsimultaneously rendering both power operdrical members andprovided respectlvely ated means inoperative, and means for reforclosing the circuits of the electrical turning the ty e carrier intoinitial position. turning and throwing means, and means to 35. In an eectrical typewriting machine, throw said electrical means outofoperation.

the combination with the platen, a type car- I In testimony whereof Ihereunto afiix my rier having circumferentially arranged signature inthe presence of two witnesses. types, a shaft supporting said typecarrier OSKAR FISCHER. and having a notched collar, a rocking leverWitnesses: normall engaging said collar and holding HENRY HASPER,

the she t and carrier in a medial position, WALDEMAR Ham.

